' un fermaglio ("graffetta") 1.1,1.2,0 1.1,5,0 2,6,0 2.9,5,0 2.9,0.8,0 0.8,0.8,0 0.8,7,0 2,8,0 3.2,7,0 3.2,1.2,0 L=10 O=15,12,10 scrivi z=0 scrivi4 Un scrivi3 fermaglio scrivi2 sul scrivi1 piano